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Browsing by Author "Levien, Keith L."
Now showing items 1-20 of 20
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Sahle-Demessie, Endalkachew (1994-05-06)
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Kittidacha, Witoon (1999-07-06)
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Coonce, Vincent M. (1991-01-16)The principal aim of this study was the use and evaluation of dynamic modeling techniques to identify mathematical models for cereal drying rates and quality changes that best describe thin-layer malt drying data. Seve ...
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Zier, David A. (2009-05-13)General purpose computer systems have seen increased performance potential through the parallel processing capabilities of multicore processors. Yet this potential performance can only be attained through parallel appli ...
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Acda, Menandro N.; Morrell, Jeffrey J.; Levien, Keith L. (Society of Wood Science and Technology, 1997-07)This study examines the effects of pressure, temperature, and treatment time on supercritical fluid impregnation of such composites as plywood, particleboard, flakeboard, and medium-density fiberboard. Carbon dioxide wit ...
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Kang, Sung-Mo; Levien, Keith L.; Morrell, Jeffrey J. (Society of Wood Science and Technology, 2006-01)The effect of process variations under supercritical conditions on cyproconazole retention and distribution in ponderosa pine sapwood boards was assessed. While pressure and temperature appeared to affect biocide solubil ...
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Acda, Menandro N.; Morrell, Jeffrey J.; Levien, Keith L. (Society of Wood Science and Technology, 1997-04)The effects of supercritical fluid (SCF) impregnation on physical properties of composites were investigated at various pressures, temperatures, and treatment times with carbon dioxide as the fluid and tebuconazole as a ...
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Yi, Jung-Seok (1993-11-30)The extraction of pentachlorophenol (PCP) from pressure treated wood wafers with supercritical carbon dioxide has been studied. Experimental data were obtained for the effects of pressure (17.5 - 25.0 MPa), temperature ...
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Schneider, Philip F.; Levien, Keith L.; Morrell, Jeffrey J. (Society of Wood Science and Technology, 2003-04)The development of pressure inside wood during preservative impregnation was studied using Douglas-fir heartwood and ponderosa pine sapwood. Pressure sensors mounted on sample holders provided the most reliable measureme ...
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Kulkarni, Milind S. (1992-07-22)This thesis examines the transient response of a packed bed heat regenerator when heated from an initial uniform bed temperature. Very large (1700 K) temperature differences were studied as well as the effect of simul ...
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Kokron, Carlos J. (1991-06-18)This thesis examines the transient performance of packed bed heat regenerators when very large temperature differences are involved. The effects of gas temperature on the key gas physical properties of velocity, densi ...
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Hassan, Ali (Ali Humaid) (1997-04-04)
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Pavarajarn, Varong (1996-01-03)Two approaches to reduce computational requirements for solving reactive distillation problems have been studied: simplification of the model using physical assumptions and numerical approximation using an orthogonal c ...
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Chen, Chi-Shen (2006-06-08)The primary purpose of this study was to try to (1) provide information on the chemical nature, including turbidity formation, of polygalacturonic acid in different concentrations of NaCl solution. (2) use turbidity form ...
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Chaiwanakupt, Nopasit (1994-09-23)The principal objective of this study was to investigate process simulation and optimization of an existing offshore natural gas process which needed profitability improvements. Optimization was done using two alternat ...
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Junsophonsri, Sarawadee (1994-08-23)
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Chavasit, Visith (1989-06-16)Pediococcus cerevisiae, Lactobacillus casei, Lactobacillus plantarum, Leuconostoc mesenteroides, Lactococcus diacetylactis Bifidobacterium bifidum, Leuconostoc oenos, and mixed cultures of Propionibacterium shermanii ...
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Demessie, Endalkachew Sahle; Hassan, Ali; Levien, Keith L.; Kumar, Satish; Morrell, Jeffrey J. (Society of Wood Science and Technology, 1995-07)The effect of supercritical fluid treatment on superficial gas permeability of Douglas-fir was investigated by using carbon dioxide either alone or amended with methanol. Permeability increased in a majority of samples, ...
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Smith, Susan M.; Demessie, E. Sahle; Morrell, Jeffrey J.; Levien, Keith L.; Ng, Harry (Society of Wood Science and Technology, 1993-04)Adverse effects on mechanical properties from using a supercritical fluid (SCF) to increase preservative penetration of refractory woods were evaluated by treating small ponderosa pine sapwood specimens with supercritica ...
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Matandos, Marcio (1991-12-12)Two basic approaches to reduce computational requirements for solving distillation problems have been studied: simplifications of the model based on physical approximations and order reduction techniques based on numer ...
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